MembersController中的ArgumentError＃登录US-ASCII中的无效字节序列

Question

我试图用omuniauth gem设置twitter登录系统，突然间它发生了。 我无法显示任何页面，并在下面显示错误消息。 “MembersController中的ArgumentError #USA-ASCII中的登录无效字节序列”你能告诉我如何解决这个问题吗？

这是终端命令中的日志。

☆终端命令日志①

 ArgumentError (invalid byte sequence in US-ASCII):
      better_errors (1.0.1) lib/better_errors/error_page.rb:82:in `exception_message'
      (erubis:734:in `render'
      erubis (2.7.0) lib/erubis/evaluator.rb:65:in `eval'
      erubis (2.7.0) lib/erubis/evaluator.rb:65:in `result'
      better_errors (1.0.1) lib/better_errors/error_page.rb:25:in `render'
      better_errors (1.0.1) lib/better_errors/middleware.rb:96:in `show_error_page'
      better_errors (1.0.1) lib/better_errors/middleware.rb:88:in `rescue in protected_app_call'
      better_errors (1.0.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
      better_errors (1.0.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
      better_errors (1.0.1) lib/better_errors/middleware.rb:56:in `call'
      actionpack (3.2.11) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
      actionpack (3.2.11) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
      railties (3.2.11) lib/rails/rack/logger.rb:32:in `call_app'
      railties (3.2.11) lib/rails/rack/logger.rb:16:in `block in call'
      activesupport (3.2.11) lib/active_support/tagged_logging.rb:22:in `tagged'
      railties (3.2.11) lib/rails/rack/logger.rb:16:in `call'
      actionpack (3.2.11) lib/action_dispatch/middleware/request_id.rb:22:in `call'
      rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
      rack (1.4.5) lib/rack/runtime.rb:17:in `call'
      activesupport (3.2.11) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
      rack (1.4.5) lib/rack/lock.rb:15:in `call'
      actionpack (3.2.11) lib/action_dispatch/middleware/static.rb:62:in `call'
      railties (3.2.11) lib/rails/engine.rb:479:in `call'
      railties (3.2.11) lib/rails/application.rb:223:in `call'
      rack (1.4.5) lib/rack/content_length.rb:14:in `call'
      railties (3.2.11) lib/rails/rack/log_tailer.rb:17:in `call'
      rack (1.4.5) lib/rack/handler/webrick.rb:59:in `service'
      /Users/aramakikuniharu/.rvm/rubies/ruby-1.9.3-   p448/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
      /Users/aramaki/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
      /Users/aramaki/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'

☆终端命令日志②

   SyntaxError -     
    /Users/aramaki/railsprojects/miniSNS/app/controllers/application_controller.rb:30: 
     invalid multibyte char (US-ASCII)
    /Users/aramaki/railsprojects/miniSNS/app/controllers/application_controller.rb:30: syntax error, unexpected $end, expecting keyword_end
  end　　　　　
      ^:

☆application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery


  def logout 
   session[:user_id] = nil
   redirect_to "members/login"
   return
 end

  def login?
     if session[:user_id] != nil then
        return true
     else
        return false
     end
  end

  def me? obj = nil
     id_num = obj !=nil ? obj.member_id : params[:id].to_i
     if session[:user_id] == id_num then
        return true
     else
        return false
     end
  end

  def admin?
    Member.find(session[:user_id]).admin
  end　　　　　
　　　　　  
  def checklogin?　　
    if session[:user_id] != nil then
        return true
    else　　　　　
        redirect_to '/members/login'
        return false
    end
  end

  def checkme? obj = nil
    id_num = obj !=nil ? obj.member_id : params[:id].to_i
    if session[:user_id] == id_num then
        return true
    else
        redirect_to '/members/' + session[:user_id].to_s
        return false
    end
  end

  def checkadmin?
    if Member.find(session[:user_id]).admin then
       return true
    else
      redirect_to '/members/' + session[:user_id].to_s
      return false
    end
  end

    helper_method :current_user

  private
    def current_user
      @current_user ||= Member.find(session[:user_id]) if session[:user_id]
    end

end

Answer 1

查看十六进制编辑器中的代码显示，在代码中的某些点上有一堆不可见的字符。 当我碰到Alt + Space时，这种情况发生在我身上

如果您尚未声明您的ruby源文件是UTF-8，则 Ruby 1.9会尝试将该文件视为US-ASCII，并且无法解析这些文件（他们在Ruby 2.0.0中将其更改为UTF-8）。 你应该删除所有这些字符（例如，在第30行end后有5个不可见的字符不是所有空格），那么它应该可以正常工作。